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Theory of Machine

Theory of Machine
Elements of pairs held together mechanically is known as

Mechanical pair
Closed pair
Rolling pair
Open pair

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Theory of Machine
The Coriolis component of acceleration is taken into account for

Quick return motion mechanism
Slider crank mechanism
Four bar chain mechanism
All of these

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Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

0.4985/ √δS
0.571/ √δS
0.5615/ √δS
0.6253/ √δS

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Theory of Machine
The component of the acceleration, parallel to the velocity of the particle, at the given instant is called

Radial component
Coriolis component
Tangential component
None of these

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Theory of Machine
Governor is used in automobile to

Limit the vehicle speed
Maximize the fuel economy
Maintain constant engine speed
Decrease the variation of speed

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Theory of Machine
The power of a Porter governor is equal to

[3c²/(1 + 2c)] (m + M) g.h
[c²/(1 + 2c)] (m + M) g.h
[4c²/(1 + 2c)] (m + M) g.h
[2c²/(1 + 2c)] (m + M) g.h

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